AMD Ryzen 9 3900 vs AMD Ryzen 9 5900

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CPU comparison with benchmarks


AMD Ryzen 9 3900 CPU1 vs CPU2 AMD Ryzen 9 5900
AMD Ryzen 9 3900 AMD Ryzen 9 5900

CPU comparison

AMD Ryzen 9 3900 or AMD Ryzen 9 5900 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The AMD Ryzen 9 3900 has 12 cores with 24 threads and clocks with a maximum frequency of 4.30 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 3900 was released in Q3/2019.

The AMD Ryzen 9 5900 has 12 cores with 24 threads and clocks with a maximum frequency of 4.70 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 9 5900 was released in Q2/2021.
AMD Ryzen 9 (34) Family AMD Ryzen 9 (34)
AMD Ryzen 3000 (15) CPU group AMD Ryzen 5000 (12)
3 Generation 4
Matisse (Zen 2) Architecture Vermeer (Zen 3)
Desktop / Server Segment Desktop / Server
-- Predecessor AMD Ryzen 9 3900
AMD Ryzen 9 5900 Successor AMD Ryzen 9 7900

CPU Cores and Base Frequency

The AMD Ryzen 9 3900 has 12 CPU cores and can calculate 24 threads in parallel. The clock frequency of the AMD Ryzen 9 3900 is 3.10 GHz (4.30 GHz) while the AMD Ryzen 9 5900 has 12 CPU cores and 24 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 9 5900 is at 3.00 GHz (4.70 GHz).

AMD Ryzen 9 3900 Characteristic AMD Ryzen 9 5900
12 Cores 12
24 Threads 24
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking ? Yes
3.10 GHz Frequency 3.00 GHz
4.30 GHz Turbo Frequency (1 Core) 4.70 GHz
-- Turbo Frequency (All Cores) 4.10 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

AMD Ryzen 9 3900 Characteristic AMD Ryzen 9 5900
-- AI hardware --
-- AI specifications --

Internal Graphics

The AMD Ryzen 9 3900 or AMD Ryzen 9 5900 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

no iGPU GPU no iGPU
GPU frequency --
-- GPU (Turbo) --
-- GPU Generation --
Technology
Max. displays
-- Compute units --
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version --

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

no iGPU GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

The AMD Ryzen 9 3900 can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 51.2 GB/s. The AMD Ryzen 9 5900 supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 51.2 GB/s.

AMD Ryzen 9 3900 Characteristic AMD Ryzen 9 5900
DDR4-3200 Memory DDR4-3200
128 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
51.2 GB/s Max. Bandwidth 51.2 GB/s
No ECC Yes
-- L2 Cache 6.00 MB
64.00 MB L3 Cache 64.00 MB
4.0 PCIe version 4.0
20 PCIe lanes 20
39.4 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The thermal design power (TDP for short) of the AMD Ryzen 9 3900 is 65 W, while the AMD Ryzen 9 5900 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD Ryzen 9 3900 Characteristic AMD Ryzen 9 5900
65 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
95 °C Tjunction max. 95 °C

Technical details

The AMD Ryzen 9 3900 is manufactured in 7 nm and has 64.00 MB cache. The AMD Ryzen 9 5900 is manufactured in 7 nm and has a 70.00 MB cache.

AMD Ryzen 9 3900 Characteristic AMD Ryzen 9 5900
7 nm Technology 7 nm
Chiplet Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
AM4 (PGA 1331) Socket AM4 (PGA 1331)
AMD-V, SVM Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q3/2019 Release date Q2/2021
485 $ Release price --
show more data show more data


Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 9 3900 AMD Ryzen 9 3900
12C 24T @ 4.30 GHz
1281 (79%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.70 GHz
1622 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 9 3900 AMD Ryzen 9 3900
12C 24T @ 3.10 GHz
16555 (79%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
20955 (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 9 3900 AMD Ryzen 9 3900
12C 24T @ 4.30 GHz
1234 (73%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.70 GHz
1688 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 9 3900 AMD Ryzen 9 3900
12C 24T @ 3.10 GHz
11432 (82%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
13874 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
AMD Ryzen 9 3900 AMD Ryzen 9 3900
12C 24T @ 4.30 GHz
1688 (79%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.70 GHz
2130 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
AMD Ryzen 9 3900 AMD Ryzen 9 3900
12C 24T @ 3.10 GHz
10260 (100%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
9740 (95%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD Ryzen 9 3900 AMD Ryzen 9 3900
12C 24T @ 3.10 GHz
30688 (89%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
34570 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD Ryzen 9 3900 AMD Ryzen 9 3900
12C 24T @ 3.10 GHz
7586 (98%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 3.00 GHz
7746 (100%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
AMD Ryzen 9 3900 AMD Ryzen 9 3900
12C 24T @ 3.10 GHz
234 (100%)
AMD Ryzen 9 5900 AMD Ryzen 9 5900
12C 24T @ 4.10 GHz
0 (0%)

Devices using this processor

AMD Ryzen 9 3900 AMD Ryzen 9 5900
Unknown Unknown

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